linux.git/net/wireless/scan.c, branch v5.1

cfg80211: Use kmemdup in cfg80211_gen_new_ie()

2019-03-29T10:22:55+00:00

Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing 
Signed-off-by: Johannes Berg

cfg80211: fix memory leak of new_ie

2019-02-08T12:56:37+00:00

new_ie is used as a temporary storage for the generation of
the new elements. However, after copying from it the memory
wasn't freed and leaked. Free it.

Signed-off-by: Sara Sharon 
Signed-off-by: Johannes Berg

cfg80211: fix the IE inheritance of extension IEs

2019-02-08T12:56:37+00:00

Extension IEs have ID 255 followed by extension ID. Current
code is buggy in handling it in two ways:
1. When checking if IE is in the frame, it uses just the ID, which
   for extension elements is too broad.
2. It uses 0xFF to mark copied IEs, which will result in not copying
   extension IEs from the subelement.

Fix both issue.

Signed-off-by: Sara Sharon 
Signed-off-by: Johannes Berg

cfg80211: save multi-bssid properties

2019-02-08T12:51:50+00:00

When the new IEs are generated, the multiple BSSID elements
are not saved. Save aside properties that are needed later
for PS.

Signed-off-by: Sara Sharon 
Signed-off-by: Johannes Berg

cfg80211: make BSSID generation function inline

2019-02-08T12:51:50+00:00

This will enable reuse by mac80211.

Signed-off-by: Sara Sharon 
Signed-off-by: Johannes Berg

cfg80211: parse multi-bssid only if HW supports it

2019-02-08T12:51:50+00:00

Parsing and exposing nontransmitted APs is problematic
when underlying HW doesn't support it. Do it only if
driver indicated support. Allow HE restriction as well,
since the HE spec defined the exact manner that Multiple
BSSID set should behave. APs that not support the HE
spec will have less predictable Multiple BSSID set
support/behavior

Signed-off-by: Sara Sharon 
Signed-off-by: Johannes Berg

cfg80211: Move Multiple BSS info to struct cfg80211_bss to be visible

2019-02-08T12:51:50+00:00

Previously the transmitted BSS and the non-trasmitted BSS list were
defined in struct cfg80211_internal_bss. Move them to struct cfg80211_bss
since mac80211 needs this info.

Signed-off-by: Sara Sharon 
Signed-off-by: Johannes Berg

cfg80211: Properly track transmitting and non-transmitting BSS

2019-02-08T12:51:50+00:00

When holding data of the non-transmitting BSS, we need to keep the
transmitting BSS data on. Otherwise it will be released, and release
the non-transmitting BSS with it.

Signed-off-by: Sara Sharon 
Signed-off-by: Johannes Berg

cfg80211: use for_each_element() for multi-bssid parsing

2019-02-08T12:51:50+00:00

Use the new for_each_element() helper here, we cannot use
for_each_subelement() since we have a fixed 1 byte before
the subelements start.

While at it, also fix le16_to_cpup() to be get_unaligned_le16()
since we don't know anything about alignment.

Signed-off-by: Johannes Berg

cfg80211: Parsing of Multiple BSSID information in scanning

2019-02-08T12:51:50+00:00

This extends cfg80211 BSS table processing to be able to parse Multiple
BSSID element from Beacon and Probe Response frames and to update the
BSS profiles in internal database for non-transmitted BSSs.

Signed-off-by: Peng Xu 
Signed-off-by: Sara Sharon 
Signed-off-by: Jouni Malinen 
Signed-off-by: Johannes Berg